NHTSA service bulletin

NHTSA Service Bulletin 11023695: 2024, 2025 Mazda Cx-70 Plug-in Hybrid

Official manufacturer communication context for 2024, 2025 Mazda Cx-70 Plug-in Hybrid, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 11023695 summary graphic for 2024, 2025 Mazda Cx-70 Plug-in Hybrid
11023695NHTSA document ID
Manufacturer communicationcommunication type
2affected product rows
90/100quality score

Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.

Quick answer

Some customers may complain that the heater does not work properly and that a warning about a hybrid abnormality appears on the Instrument Cluster. Upon inspection, the vehicle may have DTC P0AA6:00 (High voltage insulation malfunction: Decrease in vehicle insulation resistance) stored in memory. This is caused by an inappropriate casting method of the water heater during the manufacturing process. To eliminate this concern, the casting method for the aluminum heat sink has been modified from low-pressure to high pressure casting and a seal has been added to the sheath pipe opening in the circuit board compartment.

What this bulletin may mean before buying

Treat this as service research, not a verdict on one car. Before you buy, compare this communication with official recall campaigns, model-level owner complaint patterns, and the exact vehicle’s VIN-decoded specifications. A bulletin can help you ask a seller or dealer sharper questions about software updates, known repairs, warranty extensions and service history.

Affected products listed in this communication

MakeModelModel yearsBuyer note
MazdaCx-70 Plug-in Hybrid2025Ask for service records and run the exact VIN before purchase.
MazdaCx-90 Plug-in Hybrid2024, 2025Ask for service records and run the exact VIN before purchase.

Buyer checklist

  1. Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
  2. Check recall campaign pages for safety actions that may require dealer repair.
  3. Compare this bulletin with common problem pages for the same model and component area.
  4. Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
  5. Use the used-car buying checklist and get an independent inspection.

Frequently asked questions

What is NHTSA service bulletin 11023695?

Some customers may complain that the heater does not work properly and that a warning about a hybrid abnormality appears on the Instrument Cluster. Upon inspection, the vehicle may have DTC P0AA6:00 (High voltage insulation malfunction: Decrease in vehicle insulation resistance) stored in memory. This is caused by an inappropriate casting method of the water heater during the manufacturing process. To eliminate.

Is a service bulletin the same as a recall?

No. A recall is a safety campaign with a required remedy for affected VINs. A service bulletin or manufacturer communication usually describes diagnostic, repair, software, warranty or service information.

How should a used-car buyer use this bulletin?

Use it as a research signal. Compare it with recalls, owner complaints, service records, a VIN report and an independent inspection before buying.

Check the exact VIN before you buy

Model-level pages show public safety patterns. A full VIN report helps confirm the exact vehicle, decoded specs, recall applicability and buyer checks.

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